Underfolio

Every trading day › 1987

The stock market on October 8, 1987

October 8, 1987, a Thursday. The S&P 500 fell 1.38% to close at 314.16. Of 6,394 US stocks that traded, 1,238 rose and 2,858 fell.

The S&P 500-1.38%closed at 314.16
How big a move#3,636of 24,799 trading days since 1928
$100 in the index since$2,452price only, to September 24, 2026
Stocks that rose1,238of 6,394; 2,858 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

MCI Communications (MCIC.)+7.1%
Cabot Corporation (CBT)+5.4%
Pennzoil (PZE)+3.7%

Biggest falls among the 500 largest companies

Nordstrom (JWN)-8.1%
Himont Inc (HMT)-7.8%
First Executive Corp (FEXC)-7.7%

Stock moves count dividends; the index is price only. Market values after 2024 are estimates.

‹ October 7, 1987 · Every October 8 · October 9, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.